Routing Number #255077998
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Upon reboot, press or F7 to "Disable driver signature enforcement."
PSA Interface Checker and the underlying ACTIA drivers were built for 32-bit systems. Windows 10 and 11 64-bit actively block the unsigned legacy drivers needed to communicate with the chip.
If you are still stuck trying to get your diagnostic tools to communicate, let me know: What are you running? What Diagbox version are you trying to connect to? Is your Lexia cable a full-chip or lite clone? psa interface checker scary mistake fix
The most common mistake is running this legacy software on a modern 64-bit operating system.
If you must use a 64-bit system, you have to force Windows to accept the old ACTIA drivers. Hold the key and click Restart in your Windows menu. Upon reboot, press or F7 to "Disable driver
Wait 10 seconds and plug it into a different physical USB port (preferably a USB 2.0 port, as USB 3.0 ports often cause communication drops with this hardware).
Flashing the wrong firmware version, causing the ACTIA USB driver to lose communication with the hardware entirely. What Diagbox version are you trying to connect to
Follow these steps in order to safely restore your interface and eliminate the error. 1. The Operating System Environment Fix
Navigate to > Advanced Options > Startup Settings > Restart .
If the tool opens but fails to read the reference, your initialization file is corrupted or cannot find the hardware path. Disconnect the USB cable from the PC.
